将值插入 C# 中的 SQL 服务器表后，如何将值加 1？

Question

Especially for the columns with ID's, I want to add a value of 1 after I inserted a ID into a SQL Server table, so it will be ID +1. Now I can't figure out a way to do this. Does anyone have tips?

Answer 1

In the table creation script, set that column as identity, so you don't need to mention the column name in the insert script, and the SQL server will automatically fill its value with the maximum value +1.

Here is an example of table creation and how to insert some data into it, and what the result will be.

Creation

create table tablename (id int identity,name nvarchar(max))

Insertion

Insert Into TableName(name) values('Test1') Insert Into TableName(name) values('Test2')

Result

ID Name 1 Test1 2 Test2